I have a plastic plant thing that i got for my crested gecko and i only put half of it in the cage so i may put the other half in the cornsnake cage. Yea i know that corns can live in a 20gL for their whole life but i was thinking the hatchling might get stressed from having such a big cage. I will have a hide on both ends of the cage, possibly the plastic plant, under the water bowl if it happened to go under there, and the aspen so it will have many places to hide. I got one of those vine things that they sell at petstores for my crested gecko but never used it so i might put it in the corn's cage for it to climb on.